This transformer can be used either for a single or multiple fixtures requiring up to 60 watts of 12 volt power

this kit is a must-have for your system

or a  pre-amp type output

PART # 3X3WLCCKIT WATTS 3 Watts (x3) TRANSFORMER WATTS 20 Watts

Macro-Zyme 25 lb Bulk Bag in Pail (no WS bags) by Kasco Marine bulbs and accessories This transformer can be usedMacro Zyme 25lb Bulk Bag in Pail (no WS bags) by Kasco Marine Kascos Macro Zyme Beneficial Bacteria is the perfect choice to control and eliminate sludge and foul odors in tanks, ponds, and lakes. Macro Zyme contains a high concentration of facultative anaerobic bacteria that will rapidly reproduce and consume organic material in your pond or lake. When introduced in your water, This easy to use product quickly releases billions of beneficial bacteria